body{
    margin: 0;
    padding: 0;
    background: url(../images/submit-bg.jpg) fixed;
    background-size: cover;
    font-family: sans-serif;
}
#black-box{
    width: 100vw;
    height: 100vh;
    background-color: #000;
    opacity: 65%;
}
.loginbox{
    width: 320px;
    height: 400px;
    background: #202020;
    color: #fff;
    top: 50%;
    left: 50%;
    position: absolute;
    transform: translate(-50%,-50%);
    box-sizing: border-box;
    padding: 70px 30px;
}

.avatar{
    background: #EF3B3A;
    padding: 10px 10px;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    position: absolute;
    top: -50px;
    left: calc(50% - 50px);
}

h1{
    margin: 20px;
    padding: 0 0 20px;
    text-align: center;
    font-size: 22px;
}

.loginbox p{
    margin-top: 40px;
    margin-bottom: 10px;
    padding: 0;
    font-weight: bold;
}

.loginbox input{
    width: 100%;
    margin-bottom: 20px;
}

.loginbox input[type="text"], input[type="password"]
{
    border: none;
    border-bottom: 1px solid #fff;
    background: transparent;
    outline: none;
    height: 40px;
    color: #fff;
    font-size: 16px;
}
.loginbox input[type="submit"]
{
    border: none;
    outline: none;
    height: 40px;
    margin-top: 50px;
    background: #fb2525;
    color: #fff;
    font-size: 18px;
    border-radius: 20px;
}
.loginbox input[type="submit"]:hover
{
    cursor: pointer;
    background: #ffc107;
    color: #000;
}
.loginbox a{
    text-decoration: none;
    font-size: 12px;
    line-height: 20px;
    color: darkgrey;
}

.loginbox a:hover
{
    color: #ffc107;
}
input[type=number]::-webkit-inner-spin-button, 
input[type=number]::-webkit-outer-spin-button { 
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    margin: 0; 
}